package org.jboss.resteasy.embedded.test.core.interceptors.resource;

import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyReader;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.Provider;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.LinkedList;

@Provider
public class ReaderContextLinkedListEntityProvider implements
      MessageBodyReader<LinkedList<String>>,
      MessageBodyWriter<LinkedList<String>> {

   public static final String ERROR = "This LinkedList provider should never be used";

   @Override
   public boolean isWriteable(Class<?> type, Type genericType,
                               Annotation[] annotations, MediaType mediaType) {
      return type == LinkedList.class;
   }

   @Override
   public long getSize(LinkedList<String> t, Class<?> type, Type genericType,
                  Annotation[] annotations, MediaType mediaType) {
      return ERROR.length();
   }

   @Override
   public void writeTo(LinkedList<String> t, Class<?> type, Type genericType,
                  Annotation[] annotations, MediaType mediaType,
                  MultivaluedMap<String, Object> httpHeaders,
                  OutputStream entityStream) throws IOException,
         WebApplicationException {
      entityStream.write(ERROR.getBytes());
   }

   @Override
   public boolean isReadable(Class<?> type, Type genericType,
                              Annotation[] annotations, MediaType mediaType) {
      return isWriteable(type, genericType, annotations, mediaType);
   }

   @Override
   public LinkedList<String> readFrom(Class<LinkedList<String>> type,
                                       Type genericType, Annotation[] annotations, MediaType mediaType,
                                       MultivaluedMap<String, String> httpHeaders, InputStream entityStream)
         throws IOException, WebApplicationException {
      LinkedList<String> list = new LinkedList<String>();
      list.add(ERROR);
      return list;
   }

}
